Drainage and soakaway on extension

[Glenn83]

After a bit of help.

So currently digging out footings for my extension. I need to move my drain which is getting a build over agreement.

My question in how do you go about putting in the new drains with out all the footings caving in I am thinking common sense just to shaw them up the dig by hand on the edge if not any tips welcome

Probably done it arse about face thinking of it drainage should of been dug first

Also building a soak away this is not to much of a issue as can take it to the boundary of the footings then dig the last bit once poured

Attached is where I am at the moment

 

[blup]

Our builder put in a concrete lintel to protect the drain, and poured the founds, but not clear where your run is from and to.

 

[Glenn83]

Our builder put in a concrete lintel to protect the drain, and poured the founds, but not clear where your run is from and to.

Thanks i am ok for that bit its more the digging the trench with out it all collapsing

 

[Glenn83]

It is kind of like this the Red is the new drain I Am dropping anew drain over the existing pipes

 

[blup]

Shuttering is used in big civil engineering projects , so that would be an option.

 

[noseall]

After a bit of help.

So currently digging out footings for my extension. I need to move my drain which is getting a build over agreement.

My question in how do you go about putting in the new drains with out all the footings caving in I am thinking common sense just to shaw them up the dig by hand on the edge if not any tips welcome

Probably done it arse about face thinking of it drainage should of been dug first

Also building a soak away this is not to much of a issue as can take it to the boundary of the footings then dig the last bit once poured

Attached is where I am at the moment

All depends on the (depth) position of the drain relative to the foundation concrete.
Above conc - pour conc first.
Same level as top of conc - pour conc then remove a groove before the conc has set.
Bottom of conc - shutter each side of proposed drain travel, pour conc then do drains.